[Miklos Kalman]

yep, when I issue the dig XXXX on the machine with zimbra on it, it returns correctly:

; <<>> DiG 9.3.2 <<>> XXXX.eu
;; global options: printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 47020
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;XXXXX.eu. IN A

;; AUTHORITY SECTION:
XXXXX.eu. 10800 IN SOA ans0.t-online.hu. domain.tiszanet.hu. 2007092801 28800 3600 604800 86400

;; Query time: 93 msec
;; SERVER: 195.228.240.249#53(195.228.240.249)
;; WHEN: Mon Dec 31 00:53:39 2007
;; MSG SIZE rcvd: 97

So there must be something else wrong right? The machine I am testing with is on a dynamic IP, with refreshed happening only 24 hours, so that should not be a problem. I can get email so sending should resolve successfully right?

Also resolv conf is setup to the ISP's DNS servers, which resolve correctly. The domains are actually registered by them as well, so most definitely the problem is not there.

Btw: If I add the host as an SMTP server from my thunderbird client I am able to send email to anyone without emails bouncing back.

Maybe a config error?

Miklos